Commentaria in Primam Partem Summae Theologiae
Tommaso de Vio Cajetan (1469–1534)
First published 1507
Cajetan's Commentaria in Primam Partem Summae Theologiae offers an article-by-article exposition of Aquinas's Prima Pars. Its discussions of sacred doctrine, analogy, divine knowledge, and creation became important reference points in the later Thomist tradition. The present digital edition follows the Latin text of the Leonine edition and includes English and Spanish translations. Coverage is currently partial.
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Praefatio ad Oliverium Carrafam
In Prooemium Summae Theologiae
Quaestio I: De sacra doctrina, qualis sit, et ad quae se extendat
Articulus I: Utrum sit necessarium, praeter philosophicas disciplinas, aliam doctrinam haberi
Articulus II: Utrum sacra doctrina sit scientia
Articulus III: Utrum sacra doctrina sit una scientia
Articulus IV: Utrum sacra doctrina sit scientia practica
Articulus V: Utrum sacra doctrina sit dignior aliis scientiis
Articulus VI: Utrum haec doctrina sit sapientia
Articulus VII: Utrum deus sit subiectum huius scientiae
Articulus VIII: Utrum haec doctrina sit argumentativa
Articulus IX: Utrum sacra scriptura debeat uti metaphoris
Articulus X: Utrum sacra scriptura sub una littera habeat plures sensus
Quaestio II: De Deo, an Deus sit
Articulus I: Utrum Deum esse sit per se notum
Articulus II: Utrum Deum esse sit demonstrabile
Articulus III: Utrum Deus sit
Quaestio III: De Dei simplicitate
Articulus I: Utrum Deus sit corpus
Articulus II: Utrum in Deo sit compositio formae et materiae
Articulus III: Utrum sit idem Deus quod sua essentia vel natura
Articulus IV: Utrum in Deo sit idem essentia et esse
Articulus V: Utrum Deus sit in genere aliquo
Articulus VI: Utrum in Deo sint aliqua accidentia
Articulus VII: Utrum Deus sit omnino simplex
Articulus VIII: Utrum Deus in compositionem aliorum veniat
Quaestio IV: De Dei perfectione
Articulus I: Utrum Deus sit perfectus
Articulus II: Utrum in Deo sint perfectiones omnium rerum
Articulus III: Utrum aliqua creatura possit esse similis Deo
Quaestio V: De bono in communi
Articulus I: Utrum bonum differat secundum rem ab ente
Articulus II: Utrum bonum secundum rationem sit prius quam ens
Articulus III: Utrum omne ens sit bonum
Articulus IV: Utrum bonum habeat rationem causae finalis
Articulus V: Utrum ratio boni consistat in modo, specie et ordine
Articulus VI: Utrum convenienter dividatur bonum per honestum, utile et delectabile
Quaestio VI: De bonitate Dei
Articulus I: Utrum esse bonum Deo conveniat
Articulus II: Utrum Deus sit summum bonum
Articulus III: Utrum esse bonum per essentiam sit proprium Dei
Articulus IV: Utrum omnia sint bona bonitate divina
Quaestio VII: De infinitate Dei
Articulus I: Utrum Deus sit infinitus
Articulus II: Utrum aliquid aliud quam Deus possit esse infinitum per essentiam
Articulus III: Utrum possit esse aliquid infinitum actu secundum magnitudinem
Articulus IV: Utrum possit esse infinitum in rebus secundum multitudinem
Quaestio VIII: De existentia Dei in rebus
Articulus I: Utrum Deus sit in omnibus rebus
Articulus II: Utrum Deus sit ubique
Articulus III: Utrum Deus sit ubique per essentiam, praesentiam et potentiam
Articulus IV: Utrum esse ubique sit proprium Dei
Quaestio IX: De Dei immutabilitate
Articulus I: Utrum Deus sit omnino immutabilis
Articulus II: Utrum esse immutabile sit Dei proprium
Quaestio X: De Dei aeternitate
Articulus I: Utrum convenienter definiatur aeternitas, quod est interminabilis vitae tota simul et perfecta possessio
Articulus II: Utrum Deus sit aeternus
Articulus III: Utrum esse aeternum sit proprium Dei
Articulus IV: Utrum aeternitas differat a tempore
Articulus V: De differentia aevi et temporis
Articulus VI: Utrum sit unum aevum tantum
Quaestio XI: De unitate Dei
Articulus I: Utrum unum addat aliquid supra ens
Articulus II: Utrum unum et multa opponantur
Articulus III: Utrum Deus sit unus
Articulus IV: Utrum Deus sit maxime unus
Quaestio XII: Quomodo Deus a nobis cognoscatur
Articulus I: Utrum aliquis intellectus creatus possit Deum videre per essentiam
Articulus II: Utrum essentia Dei ab intellectu creato per aliquam similitudinem videatur
Articulus III: Utrum essentia Dei videri possit oculis corporalibus
Articulus IV: Utrum aliquis intellectus creatus per sua naturalia divinam essentiam videre possit
Articulus V: Utrum intellectus creatus ad videndum Dei essentiam aliquo creato lumine indigeat
Articulus VI: Utrum videntium essentiam Dei unus alio perfectius videat
Articulus VII: Utrum videntes Deum per essentiam ipsum comprehendant
Articulus VIII: Utrum videntes Deum per essentiam omnia in Deo videant
Articulus IX: Utrum ea quae videntur in Deo a videntibus divinam essentiam per aliquas similitudines videantur
Articulus X: Utrum videntes Deum per essentiam simul videant omnia quae in ipso vident
Articulus XI: Utrum aliquis in hac vita possit videre Deum per essentiam
Articulus XII: Utrum per rationem naturalem Deum in hac vita cognoscere possimus
Articulus XIII: Utrum per gratiam habeatur altior cognitio Dei quam ea quae habetur per rationem naturalem
Quaestio XIII: De nominibus Dei
Articulus I: Utrum aliquod nomen Deo conveniat
Articulus II: Utrum aliquod nomen dicatur de Deo substantialiter
Articulus III: Utrum aliquod nomen dicatur de Deo proprie
Articulus IV: Utrum nomina dicta de Deo sint nomina synonyma
Articulus V: Utrum ea quae de Deo dicuntur et creaturis, univoce dicantur de ipsis
Articulus VI: Utrum nomina per prius dicantur de creaturis quam de Deo
Articulus VII: Utrum nomina quae important relationem ad creaturas, dicantur de Deo ex tempore
Articulus VIII: Utrum hoc nomen *Deus* sit nomen naturae
Articulus IX: Utrum hoc nomen *Deus* sit communicabile
Articulus X: Utrum hoc nomen *Deus* univoce dicatur de Deo per participationem, secundum naturam, et secundum opinionem
Articulus XI: Utrum hoc nomen *qui est* sit maxime nomen Dei proprium
Articulus XII: Utrum propositiones affirmativae possint formari de Deo
Quaestio XIV: De scientia Dei
Articulus I: Utrum in Deo sit scientia
Articulus II: Utrum Deus intelligat se
Articulus III: Utrum Deus comprehendat seipsum
Articulus IV: Utrum ipsum intelligere Dei sit eius substantia
Articulus V: Utrum Deus cognoscat alia a se
Articulus VI: Utrum Deus cognoscat alia a se propria cognitione
Articulus VII: Utrum scientia Dei sit discursiva
Articulus VIII: Utrum scientia Dei sit causa rerum
Articulus IX: Utrum Deus habeat scientiam non entium
Articulus X: Utrum Deus cognoscat mala
Articulus XI: Utrum Deus cognoscat singularia
Articulus XII: Utrum Deus possit cognoscere infinita
Articulus XIII: Utrum scientia Dei sit futurorum contingentium
Articulus XIV: Utrum Deus cognoscat enuntiabilia
Articulus XV: Utrum scientia Dei sit variabilis
Articulus XVI: Utrum Deus de rebus habeat scientiam speculativam
Quaestio XV: De ideis
Articulus I: Utrum ideae sint
Articulus II: Utrum sint plures ideae
Articulus III: Utrum omnium quae cognoscit Deus, sint ideae
Quaestio XVI: De veritate
Articulus I: Utrum veritas sit tantum in intellectu
Articulus II: Utrum veritas sit in intellectu componente et dividente
Articulus III: Utrum verum et ens convertantur
Articulus IV: Utrum bonum secundum rationem sit prius quam verum
Articulus V: Utrum Deus sit veritas
Articulus VI: Utrum sit una sola veritas, secundum quam omnia sunt vera
Articulus VII: Utrum veritas creata sit aeterna
Articulus VIII: Utrum veritas sit imutabilis
Quaestio XVII: De falsitate
Articulus I: Utrum falsitas sit in rebus
Articulus II: Utrum in sensu sit falsitas
Articulus III: Utrum falsitas sit in intellectu
Articulus IV: Utrum verum et falsum sint contraria
Quaestio XVIII: De vita Dei
Articulus I: Utrum omnium naturalium rerum sit vivere
Articulus II: Utrum vita sit quaedam operatio
Articulus III: Utrum Deo conveniat vita
Articulus IV: Utrum omnia sint vita in Deo
Quaestio XIX: De voluntate Dei
Articulus I: Utrum in Deo sit voluntas
Articulus II: Utrum Deus velit alia a se
Articulus III: Utrum quidquid Deus vult, ex necessitate velit
Articulus IV: Utrum voluntas Dei sit causa rerum
Articulus V: Utrum voluntatis divinae sit assignare aliquam causam
Articulus VI: Utrum voluntas Dei semper impleatur
Articulus VII: Utrum voluntas Dei sit mutabilis
Articulus VIII: Utrum voluntas Dei necessitatem rebus volitis imponat
Articulus IX: Utrum voluntas Dei sit malorum
Articulus X: Utrum Deus habeat liberum arbitrium
Articulus XI: Utrum sit distinguenda in Deo voluntas signi
Articulus XII: Utrum convenienter circa divinam voluntatem ponantur quinque signa
Quaestio XX: De amore Dei
Articulus I: Utrum amor sit in Deo
Articulus II: Utrum Deus omnia amet
Articulus III: Utrum Deus aequaliter diligat omnia
Articulus IV: An Deus semper magis diligat meliora
Quaestio XXI: De iustitia et misericordia Dei
Articulus I: Utrum in Deo sit iustitia
Articulus II: Utrum iustitia Dei sit veritas
Articulus III: Utrum misericordia competat Deo
Articulus IV: Utrum in omnibus operibus Dei sit misericordia et iustitia
Quaestio XXII: De providentia Dei
Articulus I: Utrum providentia Deo conveniat
Articulus II: Utrum omnia sint subiecta divinae providentiae
No title is needed for the exposition: for whoever says all excludes nothing. In the body he does two things. First, he reports three opinions concerning the question at issue. The first is that of Democritus and Epicurus, who say that nothing is subject to divine providence. The second is that of Averroes, in Book XII of the Metaphysics, commentaries XXXVII and LII, who says that only incorruptible things are subject to divine providence. The third is that of Rabbi Moses, who says that not only incorruptible things but also singulars—yet those of the human species alone—are subject to divine providence. Now the reasons from which these opinions arose are adduced in the text as arguments.
II. Second, he answers the question according to the truth, with a single conclusion, which he proves in two ways1. The responsive conclusion is therefore: All things are subject to divine providence, not only universally but also singularly. — And it is proved first as follows. Every agent acts for an end: therefore all things subject to the causality of the first agent are also subject to its ordination toward an end: therefore all things that have being (esse) in any way whatsoever are ordered by God to an end: therefore all things, insofar as they have being (esse) in any way at all, to that extent are subject to divine providence. The first consequence is made manifest from the opposite: namely, that something intervenes in the works of a certain agent that is not subject to that order precisely because that effect is not subject to the causality of that cause, but proceeds from some other cause, beyond the intention of the agent itself. — The second consequence is proved from the fact that the causality of God extends itself to all things, even individual ones, etc. And its consequent is confirmed by the authority of the Apostle. — The third consequence is proved from the very definition of providence: namely, that it is the reason of the order of things toward an end.
III. Concerning this argument, note three things. First, that the first inference was proven a posteriori because it holds of itself in virtue of the antecedent. For when I say, every agent acts for an end, I signify the causality of the agent in what I say, acts; but the ordination of the effect to the end is signified by the word for an end. Therefore the causality is no broader than the ordination, unless it act not for an end. And for this reason it follows most fittingly, and without any other middle term, that if action is for an end, the ordination to an end extends just as far as the causality: because the word for matches the word acts. Second, that the term "causality" placed in the text must be weighed with respect to the present matter, and taken with sufficient propriety. For it is not taken for any manner whatsoever of making something; but for making something in such a way that by its very action it makes that which is called the effect by itself; so that the thing truly has from that causality the condition that has been made. As a sign of this, in the text the effect per accidens of some cause is said to be through the causality of another cause; and not of that cause of which it is said to be the effect per accidens. Causality thus understood is nothing other than causality per se. Yet it was not necessary to express the words per se in the text: since in scientific discourse all things are to be interpreted per se. Third, that when it is said here that God's causality extends itself to all things, etc., this is to be understood as was said and expounded in question VIII2, namely through essence and power. Otherwise, this reasoning would be worth nothing, as can easily be seen by one who considers it.
IV. The second argument3 for the conclusion is: God knows all things, even in their particularity, as their craftsman; therefore it is necessary that all things be subordinated to His order. — And the inference is proved: because all things made by art are subject to the order of the art. Note here that the intention of the text is not to posit an identity between art and providence, since their difference is manifest, in that art regards the very substance of the things made, whereas providence regards their order to an end. Rather, it intends that art and providence are related proportionally; and therefore, etc. In sign of this, the text, in proving the inference, uses the term as, which is a mark not of identity but of likeness, doubtless proportional in this context.
V. In response to the first objection, note that both the fortuitous and the accidental are relative: and therefore it is not necessary that what is fortuitous in itself and absolutely be fortuitous with respect to every agent. For this is the difference between absolute and relative things, that when something is in itself simply such according to some absolute predicate, it does not cease to be or to be called such by comparison with anything whatsoever; but when something is such in itself and absolutely according to some relative predicate, not only does it not have such a predicate in relation to anything whatsoever, but only in relation to its correlative; rather, it can even acquire the opposite relative predicate, though in relation to another correlative, as is clear in the case of white, which, though absolutely similar to another white thing, when compared to black, is dissimilar. Therefore, since things are called fortuitous or accidental in relation to created nature and intention, it is not unfitting that in relation to the divine intention they be not fortuitous, but intended per se and so called. Yet in such a way that, taken in themselves, they both are and are called simply accidental or fortuitous: for the reason that each thing is and is judged according to its own and proximate causes.
And by this it is clear that this doctrine concerning divine providence does not contradict the doctrine handed down in natural philosophy 4, and VI Metaphysics 5 For in both places things are examined and judged according as they depend on proximate causes, or at least particular causes, such as all created causes are; and the mode in which an effect is caused—namely, necessarily or contingently—is subject neither to their intentions nor to their causalities. For this is proper to the first cause, which regards being (ens) precisely as being (ens).
VI. In response to the second, a difficulty arises as to how the evils of fault are permitted by God on account of the perfection of the universe. First, because if God had cooperated with His grace with both the angels and men who fell, unto perseverance in good forever, as was possible, the universe would be much better: since nothing would have fallen away from order in respect of the divine will according to itself, which is the supreme order in the universe; for in such a falling away the evil of fault consists, as was said above 6 Second, because the virtues which are occasioned by the evil of fault, such as the patience of martyrs and penitence, etc., would not be lacking to the universe: for they would be found according to the preparation of the mind.
VII. To this it is said that the integrity of the universe is a greater good than any particular created good, as is clear from Genesis I 7. Now the integrity of the universe requires the virtues, and whatever other goods occasionally arise from evil—not only in the imperfect state, but in the perfect state. And it is evident that the perfect state of virtue consists in second act, and not in habit, as is clear from I Ethics 8 and XII Metaphysics 9 Many perfections would therefore be lacking to the universe: for instance, punitive justice, the patience of the martyrs, and similar things. – Indeed—and this must be weighed most of all—the universe would lack that sacrifice of the divine supposit which He offered on the cross; and this was and is so great a good that it exceeds in goodness every evil of fault, not only of men but also of demons. Hence even the order toward the divine goodness in itself, though wounded by the evil of fault, was so enriched with good by God out of that same evil of fault—good belonging to that very order—that we may rightly say that God acted felicitously with respect to the universe when He permitted the evils of fault; in accordance with that saying of Gregory 10: O happy fault, etc.
VIII. There is also a natural reason why evil of fault was permitted, namely the gentle ordering of things. For the power of sinning could not be withdrawn from the universe without its greatest loss, namely the loss of all intellectual creatures, as is clear elsewhere 11 Now the act of sin, proceeding from such a power, could indeed have been prevented, that is, not permitted; yet the gentle ordering of created free will does not require this, but rather that it act of its own power. And since it belongs to divine providence to order all things gently, God most wisely chose the permission of evils of fault.
IX. Nor let you be deceived, when you read in the text that evils are intended by universal nature; and accordingly that evils of fault are intended by the first and most universal agent. For these are not to be understood as if those evils themselves were willed or intended, either per se or per accidens (since this is impossible in the case of evil of fault, as was shown above at 12): but that those evils themselves are not unwilled, that is, excluded, by the intention or volition of the first cause; and that the permission of evils of fault is intended, on account of the integrity and perfection of the universe. And according to this permission, there holds a proportional likeness between the intention of universal nature with respect to natural evils and the intention of God in glory with respect to evils of fault.